This Technical Specification (TS) describes a method for an accelerated ageing test of an adhesive in its container. The result provides the manufacturer with an indication of the storage stability of the adhesive and container combination and their ability to retain adhesive properties. The method described is intended for solvent based adhesives for thermoplastic piping systems but may be applied to other adhesive types if appropriate. The method described in this TS does not give a correlation between the results obtained after the accelerated aging test and after the shelf life of the adhesive at the ambient conditions defined by the manufacturer in the data sheet.